Search for robc1976's (i think) post about wastegate adjustment on the front turbo, it's apparently doable. FUD=99 on the JB4 non-ISO board is a temporary fix because it's limited in it's capability. I would recommend adjusting the wastegate actuator rods, if possible, or upgrade to an ISO board which allows adjustment from 0-100.

I THINK MY JB4 BOARD IS THE G5 ONE WHICH I HEARD WAS THE MOST RECENT ONE CAN I ADJUST IT TO 100? I ONLY PUT IT AT 99